Some of those kydex things are heated too close to the trigger, like those necklace holsters. You can see the outline of the trigger under the kydex. that's what scares me with a 2lb trigger. Holstering up and BANG! My IWB kydex grabs the trigger guard nicely but theres no shadow/outline of the trigger thru the kydex. Lots of space and lack of contact near the trigger. Cramming a 2lb hot pistol in there wouldn't be a problem but some holsters would be. Would be a whisker too close.
Def would not put a 2lb trigger in my pocket or under the belt without a healthy trigger guarded holster such as a pocket holster or IWB type deal.
My competition holster is no problem. Pretty much only gravity holding it in there. Trigger bounce would be the only thing I'd be concerned with. Some stages have specified round counts and a bounce or two would mess up those stages quick. But occasional bounce would be ok with me, the performance gains elsewhere would more than make up for it.
Anyways. My son is giving up on his AR build due to lack of quality control with some of the lower receiver manufacturers. PARTS available (no lower receivers). Contact me if you need some higher end stuff.